Pump.



M. A. TIPS.

PUMP.

APPLICATION FILED FEB. II. 1918.

1 ,286, 1 50. Patented Nov. 26, 1918.

2 SHEETS-SHEET I.

M. A. IIPS.

PUMP.

APPLICATION FILED FEB. II. I918.

1 ,286, 1 50. Patented Nov. 26, 1918.

2 SHEETSSHEET 2.

I 3 e? V muamtoz M Clrto'z mu UNITED STATES PATENT @EFTEE.

MAURICE A. TIPS, 0F WOONSOCKET, RHODE ISLAND, ASSIGNOR TO TIPS AERO MOTOR COMPANY, INC., OF WOONSOCKET, RHODE- ISLAND.

ISLAND, A CORPORATION OF RHODE PUMP.

Patented Nov. 26, 191.8.

Original application filed October 11, 1917, Serial No. 195.898. Divided and this application filed February 11, 1918. Serial No. 216,604.

To all whom. it may concern Be it known that I. \Lmmes A. TIPS, a subject. of the King of Belgium, and a resi dent of \Voonsocket. in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Pumps, of which the. following is a specification.

This invention relates to pumps and has particular reference to oil pumps designed to be used in connection with internal combustion engines although not. restricted to such use.

An important object of the invention is to provide in a device of the above mentioned character a means whereby a suitable lubricant may be effectively pumped or supplied to the various working elements employed in an internal combustion engine construction.

A further object of the invention is to provide in a device of the above mentioned character a means whereby the lubricant employed may be subjected to a refrigerating effect during its travel to the various working elements employed in an internal combustion engine construction.

A further object of the invention is to provide in a device of the above mentioned character a novel and simple means whereby the lubricant. may be trapped within the device as a whole immediately prior to the ejection of the same therefrom.

A further object of the invention is to provide in a device of the above mentioned character a simple and novel means for relieving back pressure of the lubricant within the device subsequent to the ejection of the lubricant therefrom.

A further object of the invention is to provide a device of the above mentioned char acter consisting of the least possible number of elements, and which is simple in construction, strong. durable, inexpensive to manufacture, and reliable in operation.

Other objects and advantages of the invention will be apparent from the foregoing description.

This application is a division of my application filed October 11, 1917 for internal combustion engine, Serial No. 195,898.

In the accompanying drawings, forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a fragmental transverse sectional view of an engine embodying my invention,

Fig. 2 is a central vertical sectional view of the device embodying my invention,

Fig. 3 is a similar view to Fig. :2 showing certain elements employed therein in elevation, and

Fig. 4 is a fragmental sectional view of the device embodying my invention showing a top plan view of'cert-ain elements employed therein.

In the drawings, wherein for the purpose of illustration is shown a preferred form of my invention, the mnncral 5 indicates a rotating main body of an internal combustion engine provided with a plurality of cylinders, one of which is indicated by the numeral 6 and a crank shaft. 7 having connected thereto a plurality of connecting rods 8. To a portion of a stationary frame 9 suitably supporting the cylinder block or casting 5 is secured an intake manifold 10 having a casing 11v preferably formed integral therewith. The casing 11 is provided with a conduit 12 through which a suitable lubricant is adapted to be directed into the casing 11 from any suitable source of supply not shown. The outer edge of the. casing 11 is provided with external screw-threads 13l1aving screw-thread engagement with a flanged cap 14 as shown. Between the outer end of the casing 11 and a flange 15 of the cap 1.4 there is confined a packing ring lt', a glass plate 17 and a second packing ring 18. To the crank shaft 7 there is connected a driving shaft. 19 provided centrally with a passage 20 extending throughout the entire length of the driving shaft and communicating with suitable ducts or passages, not shown, provided by the crank shaft for conveying lubricant to certain working elements of th engine as will hereinafter be described. The outer end of this driving shaft 19 is provided with a chamber 21 having connnunication with the passage 20 and earrying therein a coil spring 22 one end of which engages a ball valve 22' adapted to seat within an opening 23 provided centrally within a piston 24 having screw-thread engagement with the driving shaft 19 as shown at This piston it will be noted is provided with a beveled face 26 and carries at one peripheral edge thereof an elongated flange 2? fitting snugly about an inwardly projecting nipple 28. This nipple it will be noted carries a bushing 29 which serves not only as a bearing for the driving shaft 19 projecting thcrethrough but also as a means for preventing the escape of oil or lubricant adapted to be carried within the casing 11 through the nipple 28.

Slidably mounted upon the piston 21 is a cylinder 30 which is provided with a plurality of apertures 31 and carries a piston lug 32 slidably confined between a pair of ribs carried by the casing 11, one of which ribs is indicated by the numeral 33. \Vithin one end of the cylinder 30 is secured a block 34 provided with a bevel face 35. To the outer end of the cylinder 30 there is secured an elongated arm 36 to each end of which is secured a coil spring 37 which in turn is connected to an eyelet 38 provided within the casing 11 and secured to a wall thereof as clearly shown in Fig. 4.

In use, the operation of the device is as follows: As the cylinder block or casting 5 is rotated the shaft 19 is rotated therewith and as a result of which the cylinder 30 is caused to reciprocate upon the piston 24 due to the cooperation between the bevel faces 26 and 35 carried by the piston 2-1 and block 3-1 respectively. \Vhen the piston 24. is moved to the position clearly shown in Fig. "2 oil confined within the casing 11 which has been supplied through the conduit 12 will have been drawn into the cylinder 30 through the apertures 31. 'hen the piston 21 is moved to the position clearly shown in Fig. 3 the apertures 31 are closed and the cylinder 30 due to the influence of the coil springs 37 thereupon will move to the position clearly shown in Fig. 3, thereby forcing the oil which has been directed within the cylinder 30 through the opening 23, lifting the ball valve 2:2 against the influence of the spring 22 and onwardly through the passage 20 and into ducts provided by the crank shaft 7 whereupon it will be distributed to the various working elements employed in the construction of the engine as a whole.

I wish to emphasize here the fact that the lubricant when passing through the passage 20 is subjected to a refrigerating efiect. the refrigerating effect being brought about by the contacting with the rotating shaft 19 of the expanding gaseous fuel vapor as the vapor is directed inwardly through the intake manifold 10.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape. size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims. I

Having thus described my invention, what I claim as new and desire to secure and protect by Letters Patent of the United States, is:

1. In an internal combustion engine the combination with a carbureter, of a lubricating pump comprising a rotating piston, and a reciprocatory cylinder carried by said piston and reciprocated thereby, the oil discharge passage from said pump passing through the vaporizing chamber of said carbureter whereby the oil is subjected to a refrigerat-ing effect during its travel to the engine.

2. In an internal combustion engine the combination with a carbi'ireter, of a lubricating pump comprising a rotating piston, a longitudinally movable cylinder 'arrie-d by said piston, said pistonbeing adapted to movethe cylinder longitudinally in one direction, and means for returning said cylinder to a normal position, the oil discharge from said pump passing through the vaporizing chamber of saidcarbureter whereby the oil is subjected to a refrigerating effect on its way to the engine.

3. A device of the character described con'iprising a rotating piston, a longitudinally movable cylinder carried by the piston, one end of said piston normally contacting the end of said cylinder. said piston serving as a means for moving the cylinder in a longitudinal direction thereupon, and spring tension means for returning the cylinder to a normal position.

4.- An oil pump of the character described comprising a rotating piston provided with an opening, a longitudinally movable cylinder carried by the piston and provided with a plurality, of apertures, said piston being adapted to move the cylinder longitudinally in one direction thereupon to form a space between the end of said piston and the inner wall of said cylinder, said cylinder be ing adapted to receive oil therein through said apertures and means for moving said cylinder longitudinally upon the piston whereby the space btt-WQQII the end of said piston and the inner wall of said cylinder will be diminished.

An oi pump f the character describedcomprising a driving shaft provided with a longitudinal opening therein, a piston con nected to said driving shaft and provided with an'opening registering with thevfirst named opening, a cylinder slidably mounted upon said piston and adapted for movement in one longitudinal direction thereupon by said piston and means associated with said cylinder for moving the same in an opposite direction upon said piston.

6. An oil pump of the character described comprising a rotating driving shaft provided centrally therein with a longitudinal opening, a piston provided with a beveled face mounted upon one end of said shaft,

' gitudinal opening provided therein,

said piston having an opening formed centrally therein and registering with the first named opening, a cylinder slidably mounted upon said piston and provided with a plurality of apertures, a block carried within said cylinder and )rovided with a beveled face, the bevel face 0 said block being adapted to normally engage the bevel face carried by said piston, said cylinder being move longitudinally in one direction by the rotation of said piston and means for returning the cylinder to a normal position upon said piston.

7. The combination with an internal coinbustion engine of a rotatable piston connected to the crank shaft of said engine, a cylinder slidably carried upon said piston and provided with a plurality of apertures, said cylinder being adapted to be moved in one direction by said rotatin piston to form therein a space between t 1e piston and the end wall of said cylinder, and means for returning the cylinder to a normal position.

An oil pump of the character described comprising a rotating shaft having a lona piston secured to said shaft and provided with an opening communicating with the first named opening, a valve adapted to seat within the second named opening, a rec-iprocatory cylinder carried by said piston and provided with apertures adapted to permit the entrance of oil into said cylinder, means for moving said cylinder whereby a. space may be provided between the end of said piston and said cylinder to allow the flow of oil therein and means for moving said cylinder whereby said space may be diminished whereby the .oil may be forced from Said cylinder through said openings.

An oil pump of the character described comprising a rotating shaft having a longitudinal opening provided therein, a piston secured to said shaft and provided with an opening communicating with the first named opening, a spring pressed valve adapted to seat within the second named opening. a reciprocating cylinder carried by said piston and provided with entrance of oil into said cylinder, means for preventing rotation of said cylinder with respect to said piston, means for moving said cylinder whereby a space may be provided between the end of said piston and cylinder to allow the flow of oil therein, and means for moving said cylinder whereby said space may be diminished whereby the oil may be forced from said cylinder through said openin 10. In an oil pump, the combination with a revolving element having a beveled end, of a cup-shaped element having a beveled bottom, said cupshaped member being adapted to slide on and inclose said revolving member and being normally urged against said revolving member by resilient means, means to prevent the rotation of said cupshaped member. said cup-shaped member having an oil inlet port, and saidrevolving element having an outlet port.

11. In an internal combustion engine, the combination with a carbureter of a lubrieating pump mounted on the casing of said carbureter, the oil discharge passage from said pump passing through the vaporizing chamber of said carlmreter, whereby the oil is subjected to a refrigerating effect on its way to the engine.

MAURICE A. TIPS.

an opening to permit the 

